December 24, 2025

Data Visualization Engineer

Mid • Remote

$50 - $65/hr

Warsaw, Poland

📍 Work mode: 100% Remote (US or UK working hours)

🕒 Contract type: B2B

💼 Experience level: Mid–Senior

💰 Rate: 50–65 USD/h net + VAT

📆 Project length: Long-term cooperation


🏢 About the Company

We collaborate exclusively with a stable US-based client, a global leader in electronic trading platforms that has operated for over 25 years. The company serves the world’s leading asset managers, central banks, hedge funds, and other institutional investors — facilitating around 30 trillion USD in trades every month across its electronic marketplaces.


📌 About the RoleWe’re looking for a Data Visualization Engineer to join an international team developing data applications and interactive analytics tools for large-scale trading systems.In this role, you’ll design and implement data visualizations, build reliable data pipelines, and contribute to the development of production-grade data services used by global financial institutions.


💼 Your Responsibilities

• Translate business requirements into technical specifications for data visualizations.

• Present front-end mock-ups effectively to both technical and non-technical stakeholders.

• Develop and operate data applications on Tradeweb’s data platform using public cloud infrastructure and modern technologies.

• Build and maintain data pipelines — define schemas, create DAG workflows, and monitor data quality.

• Manage and support mission-critical production services.


Must Have

• 3+ years of experience in data engineering or front-end development.

• Solid programming experience with Python, SQL, JavaScript, and HTML/CSS.

• Strong hands-on experience building data visualizations

• Experience implementing authentication, authorization, and web application security.

• Good understanding of HTTP, REST APIs, WebSockets, and gRPC.

• Experience with Kafka, Spark, Airflow/Prefect, Pandas/Polars, or similar tools.

• Experience with AWS or GCP (S3/GCS, EC2/GCE, IAM, etc.), Kubernetes, and Linux in production.

• Excellent communication skills and ability to collaborate with technical and business teams.


Nice to Have

• Experience building custom visualization libraries for Streamlit.

• Automated testing of web applications.

• Performance optimization and scalability improvements.

• Contributions to open-source projects.

• Experience in financial services or fintech.


🎁 What We Offer

• Competitive hourly rate: 50–65 USD/h net + VAT (B2B).

• 100% remote work with alignment to US or UK time zones.

• Long-term cooperation with a leading global fintech company.

• Flexible work environment and technical ownership.

• Opportunities to work with cutting-edge cloud and data technologies


This role isn’t for you, but know someone who’d be a great fit? Refer them and earn up to PLN 5,000.

Referral Program: Talent from your network